@@donerphysics Haha! So in fact, actual hanging would be the most accurate way. By the way, just wanted to let you know I'm taking IB2 Physics right now and you are a lifesaver :)
This video is quite old, but perhaps you can still answer my question. I'm confused as to which angle theta you are referring to at 13:52 where you use tan inverse. Which angle on the vector triangle is that? And why is tan required to find it? Also, this is more of a math question than a physics one but why do you have to add 180 to your tan inverse answer? Sorry for the long comment.
It is not an angle in the triangle. It is the polar angle measured from the horizontal axis. See my video on adding vectors using components for what is meant by a polar angle, and why you have to add 180 degrees.
Chris Doner yes i did thanks, just wasn’t sure if it applied for all situations but i think it will. just made a little more sense in my head that way. thank for all you help! my exams start in 2 weeks! got a 4 last year and been getting 6’s ever since november when i started watching your videos!
wow i really enjoy being a test mass
The only job I'm gonna exceed at in life tbh
Specially the part where we are hanged lol
lol
Thank you so much sir you are the reason for my IB Physics HL 7 grade
Glad to hear that
I love the title being in the style of a Super Mario 64
Good to hear. Spread the word.
Wow that mass hanging analogy was pretty gruesome
No, the hook is through an article of clothing, like a belt ... except that would add a systematic error.
@@donerphysics Haha! So in fact, actual hanging would be the most accurate way. By the way, just wanted to let you know I'm taking IB2 Physics right now and you are a lifesaver :)
Thanks a lot, this has really helped me in my exam preparations!
Glad to hear that!
Thanks for saving my IB physics grades ❤️
ahaha, and now he's saving mine :)
Good to hear.
mine aswell
seriously great video.
idk if ur still active but thank you
Still alive and kicking!
You are the 6 God
I am a great test mass, but I aspire to be a great test charge
Thank you sir, I missed my electric field course due to USAD and your Videos helped me a lot
Thanks a lot for this video Chris, watch in 1.5x speed if just revising basics quys!
thank you sir, love ur teaching series!
Chris Doner: Thank you and thats all for today
Me: NOOOOOOOO THANK U FOR SAVING MY LIFE!!!!!
Always a pleasure to save a life!
love it! Thanks Mr. Doner!!
My pleasure!
I didn't get the angle indicating the direction of the force.. I thought tangent= opposite/ adjacent side and thus 15,000/ 9200?
See my video on adding vectors.
Okay thank you, I will..
you are the best
For your working out on minute 14:13 shouldn't it be -15000/9200 and not the other way around as tan=opposite/adjacent
Notice that the angle is not the one in the triangle.
joke's on you, my mass creates a gravitational field
Sure, but its wimpy.
This video is quite old, but perhaps you can still answer my question. I'm confused as to which angle theta you are referring to at 13:52 where you use tan inverse. Which angle on the vector triangle is that? And why is tan required to find it? Also, this is more of a math question than a physics one but why do you have to add 180 to your tan inverse answer? Sorry for the long comment.
It is not an angle in the triangle. It is the polar angle measured from the horizontal axis. See my video on adding vectors using components for what is meant by a polar angle, and why you have to add 180 degrees.
Why does the field point towards a negative mass?
Where did you get the negative mass idea?
In 9:55 how do you know P is positive too?
That is the way the direction of the electric field is defined....the same as the direction on a positive test charge.
really helpfull sir thanksful from pakistan
You are welcome.
hello! i totally got lost when for each respective charges in 5nC and 6nc you added the x 10 to the -9, is it the unit?
What time in the video are you referring to? nC means nanoCoulomb, or 10^-9 Coulombs. These prefixes are in the data booklet.
@@donerphysics yesss!!! then i checked it and understood. thank you so much for the videos ❤️❤️❤️❤️
can I also do inverse tan opposite over adjacent + 90?
At what point in the video are you referring to?
Chris Doner around 13:40
@@olivermoes-okun2468 sure...you got the same answer, right?
Chris Doner yes i did thanks, just wasn’t sure if it applied for all situations but i think it will. just made a little more sense in my head that way. thank for all you help! my exams start in 2 weeks! got a 4 last year and been getting 6’s ever since november when i started watching your videos!